%0 Journal Article
%@nexthigherunit 8JMKD3MGPCW/43SKC35
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@resumeid
%@resumeid 8JMKD3MGP5W/3C9JJ7M
%@resumeid 8JMKD3MGP5W/3C9JJ53
%3 SantoseSilva_et_al_2012.pdf
%X In continental areas, the maximum rainfall simulated with the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS) occurs around 4 h earlier than the one observed with rain gauges. This work presents the successful implementation of a new convective trigger function (CTF) in the convective parameterization scheme used in BRAMS that corrects this misfit between model and observations. The importance of the CTF formulation on the diurnal cycle of rainfall over the Amazon Basin is reflected by the following numbers: Over Rondonia (SWAmazonia), the original version of BRAMS simulates the maximum rainfall at 1400 UTC (1000 LST), with the new CTF maximum shifting to 1800 UTC (1400 LST), while the S-band radar rainfall maximum is at 1900 UTC (1500 LST). This is attributed to two factors: (1) the new CTF is now coupled to the sensible and latent heat fluxes at surface; (2) during the early morning, the convective available potential energy is reduced.
%T Numerical simulation of the diurnal cycle of rainfall in SW Amazon basin during the 1999 rainy season: the role of convective trigger function
%@electronicmailaddress claudio@dfte.ufrn.br
%@electronicmailaddress saulo.freitas@cptec.inpe.br
%@secondarytype PRE PI
%@archivingpolicy denypublisher denyfinaldraft12
%@usergroup administrator
%@usergroup lattes
%@usergroup secretaria.cpa@dir.inpe.br
%@group
%@group DMD-CPT-INPE-MCTI-GOV-BR
%@e-mailaddress saulo.freitas@cptec.inpe.br
%@secondarymark B2_ASTRONOMIA_/_FÍSICA A2_CIÊNCIAS_AGRÁRIAS_I B1_GEOCIÊNCIAS A2_GEOGRAFIA A2_INTERDISCIPLINAR
%F lattes: 9873289111461387 2 SilvaFreiGiel:2012:RoCoTr
%@issn 0177-798X
%2 dpi.inpe.br/plutao/2012/06.21.20.36.43
%@affiliation Universidade Federal do Rio Grande do Norte
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%B Theoretical and Applied Climatology
%@versiontype publisher
%P 473–483
%4 dpi.inpe.br/plutao/2012/06.21.20.36.42
%@documentstage not transferred
%D 2012
%V 109
%@doi 10.1007/s00704-011-0571-0
%A Silva, Cláudio Moisés Santos e,
%A Freitas, Saulo Ribeiro de,
%A Gielow, Ralf,
%@dissemination WEBSCI; PORTALCAPES; MGA.
%@area MET